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Calculate the Current Flowing through the Wire

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A straight 1.77 mm diameter copper wire can just "float" horizontally in air because of the force of the Earth's magnetic field B which is horizontal and of magnitude 5.86E-5 T. What current does the wire carry?

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Solution Summary

The solution shows how to calculate the current flowing through the wire, which floats horizontally in air due to the force of the Earth's magnetic field.

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